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Hi, my manager gave me a challenge. He wanted me to prove, that I could successfully enter our office by cloning a legit card (iclass elite) that is added to our access control system. He gave me a blank card to clone my corporate badge into. I easily dumped all the data from my badge. But the CSN number can't be override. And I assume that if the CSN number doesn't match, I won't be authenticated and it's game over?
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If you are working with a legacy iclass system the standard data is likely encrypted and diversified with the uid, so a different uid means invalid data, unless you can decrypt it and reencrypt it using the key and new uid.
But some elite systems don't use the encrypted pac data, and just have it plain text. So it might not be necessary.
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My mistake - we use legacy iclass, and yeah - surprisingly I succeed with authentication using different CSN:)
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